An EPR study of the disorder and structural phase transitions of lithium potassium sulfate

Jiang Tsu Yu; Jin Meei Kou; Shu Jeu Huang; Lie Shuenn Co

doi:10.1016/0022-3697(86)90120-4

An EPR study of the disorder and structural phase transitions of lithium potassium sulfate

Jiang Tsu Yu^*, Jin Meei Kou, Shu Jeu Huang, Lie Shuenn Co

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

The EPR of NH⁺₃ free radicals has been used to probe the positional disorder and low-temperature structural phase transitions of LiKSO₄ crystals. Anomalies at 215 K and at 190 K (on cooling) in the EPR spectrum are observed. The EPR results suggest that there is disorder in the atomic positions of the sulfate groups, and that the disorder has aggregated into small-grained crystal domains.

Original language	English
Pages (from-to)	121-127
Number of pages	7
Journal	Journal of Physics and Chemistry of Solids
Volume	47
Issue number	2
DOIs	https://doi.org/10.1016/0022-3697(86)90120-4
Publication status	Published - 1986

Keywords

EPR
LiKSO4
crystal domains
crystal structure
free radicals
positional disorder
radiation damage
structural phase transitions

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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10.1016/0022-3697(86)90120-4

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title = "An EPR study of the disorder and structural phase transitions of lithium potassium sulfate",

abstract = "The EPR of NH+3 free radicals has been used to probe the positional disorder and low-temperature structural phase transitions of LiKSO4 crystals. Anomalies at 215 K and at 190 K (on cooling) in the EPR spectrum are observed. The EPR results suggest that there is disorder in the atomic positions of the sulfate groups, and that the disorder has aggregated into small-grained crystal domains.",

keywords = "EPR, LiKSO4, crystal domains, crystal structure, free radicals, positional disorder, radiation damage, structural phase transitions",

author = "Yu, {Jiang Tsu} and Kou, {Jin Meei} and Huang, {Shu Jeu} and Co, {Lie Shuenn}",

note = "Funding Information: t Supported by the National Science Council, ROC.",

year = "1986",

doi = "10.1016/0022-3697(86)90120-4",

language = "English",

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T1 - An EPR study of the disorder and structural phase transitions of lithium potassium sulfate

AU - Yu, Jiang Tsu

AU - Kou, Jin Meei

AU - Huang, Shu Jeu

AU - Co, Lie Shuenn

N1 - Funding Information: t Supported by the National Science Council, ROC.

PY - 1986

Y1 - 1986

N2 - The EPR of NH+3 free radicals has been used to probe the positional disorder and low-temperature structural phase transitions of LiKSO4 crystals. Anomalies at 215 K and at 190 K (on cooling) in the EPR spectrum are observed. The EPR results suggest that there is disorder in the atomic positions of the sulfate groups, and that the disorder has aggregated into small-grained crystal domains.

AB - The EPR of NH+3 free radicals has been used to probe the positional disorder and low-temperature structural phase transitions of LiKSO4 crystals. Anomalies at 215 K and at 190 K (on cooling) in the EPR spectrum are observed. The EPR results suggest that there is disorder in the atomic positions of the sulfate groups, and that the disorder has aggregated into small-grained crystal domains.

KW - EPR

KW - LiKSO4

KW - crystal domains

KW - crystal structure

KW - free radicals

KW - positional disorder

KW - radiation damage

KW - structural phase transitions

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SN - 0022-3697

VL - 47

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JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 2

ER -

An EPR study of the disorder and structural phase transitions of lithium potassium sulfate

Abstract

Keywords

ASJC Scopus subject areas

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